Multi-Service Mobile Platform for Well Servicing

ABSTRACT

A multi-service mobile platform is enabled for various different types of well servicing, including jointed pipe service, coiled tubing service, snubbing service, and wireline service. The multi-service mobile platform may be installed using loads to deliver modular components and assemblies, such as on a truck bed for example. The multi-service mobile platform is mobile and may be positioned in an installed and configured state from one wellhead to another wellhead. The multi-service mobile platform includes integrated hydraulic and electrical power sources and integrated lines for the power sources.

BACKGROUND Field of the Disclosure

The present disclosure relates generally to well services for hydrocarbon production and, more particularly, to a multi-service mobile platform for well servicing.

Description of the Related Art

After a well for hydrocarbon production has been drilled and completed, various well servicing operations (or simply “well servicing” as used herein) may be performed. Well servicing may refer to the maintenance, repair, or reconfiguration of an existing well. Well servicing may be indicated by an issue of well integrity that arises in a well, by production activity detected in the well, or may be part of a production plan for the well. Well servicing may encompass any of a number of different kinds of interventions that may involve running jointed pipe or coiled tubing into the well under different conditions. For example, under pipe light conditions, a snubbing unit may be used during well servicing to run jointed pipe or coiled tubing using snubbing force. Well servicing may also include particular instrumentation operations that are performed using a wireline enabled for coupling to a downhole tool that may be enabled to perform various measurement or actuation operations upon insertion into the borehole of the well.

In some instances, a particular type of well servicing operation that is indicated for a particular well may be indicated as a result of a previous well servicing operation. For example, during wireline operations, certain well conditions may be detected and may indicate another type of intervention by a well servicing operation. Typically, different kinds of well servicing operations are provided by specialized service operators that respectively have the particular equipment and expertise available for one kind of well servicing operation. In some cases, drilling/milling or finishing out a well may also be performed with the corresponding equipment as a well service. When a different kind of well servicing operation is indicated, a different service provider may be engaged who will install the corresponding equipment again at the well site. The installation and removal of different equipment from a well site for performing individual well servicing operations may be costly, time-consuming, and hazardous, and therefore, undesirable.

Similarly, when performing well servicing on a plurality of wells at a well site, such as a multi-well fracking pad, a great deal of time and effort may be expended simply transferring equipment from one well to an adjacent well, which is also undesirable.

SUMMARY

In one aspect, a first method of installing a multi-service mobile platform for well servicing is disclosed. The first method may include installing, at a first location, a base platform structure having a top box and a bottom box, the base platform structure including four main lift cylinders that enable the top box to be lowered over the bottom box such that the top box and the bottom box mate together, and installing a first hydraulic pressure unit in proximity to the first location to provide hydraulic pressure to the main lift cylinders to enable the main lift cylinders to raise and lower the top box with respect to the bottom box. In the first method, the top box and the bottom box may each comprise respective first portions and second portions, while each of the first portion and the second portion may include two of the main lift cylinders. In the first method, the first portion may correspond to an operator's side and the second portion corresponding to an off operator's side of the multi-service mobile platform. The first method may further include delivering at least one work floor section to the first location and installing the work floor section on the top box. The first method may further include delivering to the first location in any sequential order of loads a plurality of loads. In the first method, the plurality of loads may include a first load comprising a first auxiliary platform for coupling to the rear work floor section, the first portion, and the second portion of the top box, including installing the first auxiliary platform. In the first method, the first auxiliary platform may include a backup hydraulic pressure unit, a draw works, and an electrical power unit. In the first method, the plurality of loads may further include a second load comprising a blowout-preventer (BOP) platform, including installing the BOP platform to a bottom edge at the first portion and the second portion of the top box, a third load comprising a panorama cabin and a second hydraulic pressure unit that couples to the first portion of the top box, including installing the panorama cabin. In the first method, the panorama cabin may include front windows, top windows, and end windows that provide a working view of the work floor and a derrick installed on the work floor. In the first method, the plurality of loads may include a fourth load comprising a second auxiliary platform for coupling to the second portion of the top box, including installing the second auxiliary platform, and a sixth load comprising the derrick, including hoisting of a derrick onto the work floor. In the first method, the derrick may include a rotary drive, an auto torque wrench for pipe, and a crane arm, while the derrick may be aligned with the wellhead when installed on the work floor.

In any of the disclosed embodiments, the first method may further include connecting the second hydraulic pressure unit to the main lift cylinders in place of the first hydraulic pressure unit to enable the main lift cylinders to raise and lower the top box with respect to the bottom box using the second hydraulic pressure unit.

In any of the disclosed embodiments of the first method, hoisting the derrick onto the work floor may further include hoisting the derrick onto the work floor using the draw works.

In any of the disclosed embodiments, the first method may further include delivering, in any sequential order with respect to other loads, a sixth load to the first location, the sixth load including a snubbing unit. In any of the disclosed embodiments, the first method may further include lifting the snubbing unit onto the second auxiliary platform.

In any of the disclosed embodiments, the first method may further include delivering, in any sequential order with respect to other loads, a seventh load to the first location, the seventh load including at least one pipe stand rack, and including installing the at least one pipe stand rack at a front portion of the multi-service mobile platform.

In any of the disclosed embodiments, the first method may further include delivering, in any sequential order with respect to other loads, an eighth load to the first location, the eighth load including a pipe handler, and including installing the pipe handler adjacent to the at least one pipe stand rack.

In any of the disclosed embodiments, the first method may further include delivering, in any sequential order with respect to other loads, a ninth load to the first location, the ninth load including a pipe bin, and including placing the pipe bin and the pipe handler adjacent to each other.

In any of the disclosed embodiments, the first method may further include delivering, in any sequential order with respect to other loads, a tenth load to the first location, the tenth load including a coiled tubing injector. In any of the disclosed embodiments, the first method may further include lifting the coiled tubing injector onto the second auxiliary platform.

In any of the disclosed embodiments, the first method may further include delivering, in any sequential order with respect to other loads, an eleventh load to the first location, the eleventh load including a wireline unit, including lifting the wireline unit onto the top box.

In any of the disclosed embodiments, the first method may further include lifting, using the crane arm, the snubbing unit over to the wellhead from the second auxiliary platform. In any of the disclosed embodiments of the first method, the snubbing unit may be placed on a trolley running on rails on the work floor, while the first method may further include, prior to lifting the snubbing unit from the second auxiliary platform, positioning the snubbing unit in proximity to the wellhead using the trolley.

In any of the disclosed embodiments, the first method may further include moving the pipe handler away from the multi-service mobile platform, while the pipe handler remains in a working position, and delivering, in any sequential order with respect to other loads, a twelfth load to the first location, the twelfth load including a coiled tubing handler including a reel of coiled tubing enabled to feed the coiled tubing injector, and further including installing the coiled tubing handler adjacent to the pipe handler.

In any of the disclosed embodiments, the first method may further include pinning the top box to a raised height with respect to the bottom box.

In any of the disclosed embodiments of the first method, installing the BOP platform to a bottom edge at the first portion and the second portion of the top box may further include using the main lift cylinders to position the top box to unload the BOP platform and fix the BOP platform to a bottom edge at the first portion and the second portion of the top box including sliding the BOP platform in place into the multi-service mobile platform.

In any of the disclosed embodiments of the first method, installing, at the first location, the base platform structure may further include positioning the bottom box on at least one supplemental box to elevate the multi-service mobile platform by a height of the supplemental box.

In any of the disclosed embodiments of the first method, at least one load may be delivered on a truck bed, while the main lift cylinders may be used to raise the top box to a height corresponding to the truckled.

In any of the disclosed embodiments, the first method may further include lifting, using the crane arm, the coiled tubing injector over to the wellhead from the second auxiliary platform. In any of the disclosed embodiments of the first method, the coiled tubing injector may be placed on a trolley running on rails on the work floor, while the first method may further include, prior to lifting the coiled tubing injector from the second auxiliary platform, positioning the coiled tubing injector in proximity to the wellhead using the trolley.

In another aspect, a control cabin for a multi-service mobile platform is disclosed. The control cabin may include a panorama window to enable horizontal and vertical viewing of the multi-service mobile platform in operation when the control cabin is installed on the multi-service mobile platform, at least one hydraulic cylinder enabled to raise or lower the control cabin, a first control system for controlling a rotary drive and a draw works associated with the multi-service mobile platform, a second control system for controlling a snubbing unit associated with the multi-service mobile platform, a third control system for controlling a coiled tubing handler associated with the multi-service mobile platform, and a fourth control system for controlling a wireline unit associated with the multi-service mobile platform. In the control cabin, the first control system, the second control system, the third control system, and the fourth control system may be powered using an electrical power unit included with the multi-service mobile platform.

In any of the disclosed embodiments, the control cabin may further include a first workstation enabled to receive user input and communicate with the first control system and the second control system, and a second workstation enabled to receive user input and communicate with the third control system and the fourth control system. In the control cabin, the first workstation and the second workstation may be powered using the electrical power unit.

In any of the disclosed embodiments of the control cabin, when the control cabin is installed on the multi-service mobile platform, a user of the first workstation or the second workstation may be provided a view from the rotary drive to a blowout-preventer (BOP) included with the multi-service mobile platform by the panorama window.

In any of the disclosed embodiments, the control cabin may further include a heating, ventilation, and air conditioning (HVAC) system to maintain a desired working climate within the control cabin. In the control cabin, the HVAC system may be powered using the electrical power unit.

In any of the disclosed embodiments, the control cabin may further include network equipment to facilitate networking among the first workstation, the second workstation, the first control system, the second control system, the third control system, and the fourth control system, while the network equipment may be powered using the electrical power unit.

In yet another aspect, a multi-service mobile platform for well servicing is disclosed. The multi-service mobile platform may include a base platform structure having a lower level and an upper level that mate together when the upper level is lowered over the lower level, a platform base formed by an upper surface of the upper level, the platform base for accessing a wellhead for well servicing operations, four hydraulic lift cylinders for vertically raising and lowering the upper level of the base platform structure, a derrick with a rotary drive installed at the upper level, the derrick enabled to support jointed-pipe installation at the wellhead, a coiled tubing injector mounted on the derrick and enabled to support coiled tubing installation at the wellhead, and a hydraulic pressure generator enabled to supply hydraulic pressure to at least the four hydraulic lift cylinders, the derrick, and the coiled tubing injector.

In any of the disclosed embodiments of the multi-service mobile platform, at least one of the hydraulic lift cylinders may further include mechanical feet enabled to walk the multi-service mobile platform when the multi-service mobile platform is assembled.

In any of the disclosed embodiments, the multi-service mobile platform may further include a snubbing unit enabled for installation on the wellhead, and a wireline unit enabled to support wireline operations at the wellhead, while the hydraulic pressure generator may be enabled to supply hydraulic pressure to the snubbing unit.

In any of the disclosed embodiments, the multi-service mobile platform may further include a control cabin enabled for coupling to the upper level, the control cabin enabling monitoring and control of the hydraulic lift cylinders, the derrick, the rotary drive, the coiled tubing injector, the snubbing unit, and the wireline unit.

In any of the disclosed embodiments of the multi-service mobile platform, the control cabin may further include a panorama window that enables direct view of the derrick, the platform base, and the well head.

In any of the disclosed embodiments, the multi-service mobile platform may further include an electrical power generator enabled to supply electrical power to at least the derrick, the coiled tubing injector, the snubbing unit, the wireline unit, and the control cabin.

In any of the disclosed embodiments, the multi-service mobile platform may further include a hydraulic pressure manifold accessible from the lower level, the hydraulic pressure manifold enabling access from the lower level to a plurality of hydraulic fittings providing fluid communication for hydraulic pressure.

In any of the disclosed embodiments of the multi-service mobile platform, the platform base may further include a plurality of steel leaves covering the platform base. In the multi-service mobile platform, at least one of the steel leaves may be removably attached to the platform base to enable access to the lower level from the platform base.

In any of the disclosed embodiments of the multi-service mobile platform, the upper level may further include an internal staircase from the platform base to the lower level, and a wellhead platform enabled for coupling to the upper level and accessible from the internal staircase, while the wellhead platform may enable a worker to access the wellhead.

In any of the disclosed embodiments of the multi-service mobile platform, the hydraulic pressure generator may further include a plurality of hydraulic pumps. In the multi-service mobile platform, each of the hydraulic pumps may be individually activated depending on a hydraulic load provided by the hydraulic pressure generator.

In any of the disclosed embodiments of the multi-service mobile platform, all of the plurality of hydraulic pumps may be activated at a maximum hydraulic load provided by the hydraulic pressure generator.

In any of the disclosed embodiments of the multi-service mobile platform, the coiled tubing injector and the snubbing unit may be integrated as a single unit.

In any of the disclosed embodiments of the multi-service mobile platform, the derrick may be a telescopic derrick that is attached to the platform base.

In any of the disclosed embodiments of the multi-service mobile platform, the telescopic derrick may support strings of single pipe operations, double pipe operations, and triple pipe operations.

In any of the disclosed embodiments, the multi-service mobile platform may further include a rotary table installed at the platform base.

In any of the disclosed embodiments, the multi-service mobile platform may further include a pair of power tongs, and an auto-torque pipe wrench, while the pair of power tongs and the auto-torque pipe wrench may be enabled for use with the rotary table.

In any of the disclosed embodiments of the multi-service mobile platform, the derrick may further include a tie-off point for the coiled tubing injector when the coiled tubing injector is in use. In any of the disclosed embodiments of the multi-service mobile platform, the tie-off point may be adjustable at different heights with respect to the derrick.

In any of the disclosed embodiments, the multi-service mobile platform may further include a driver for the wireline unit attached to the derrick.

In any of the disclosed embodiments, the multi-service mobile platform may further include an auxiliary platform enabled for coupling to the upper level at an opposing side of the upper level from the control cabin. In the multi-service mobile platform, the auxiliary platform may be enabled for stowing the coiled tubing injector when the coiled tubing injector is not in use.

In any of the disclosed embodiments of the multi-service mobile platform, the auxiliary platform may further include a choke manifold enabled to change direction of fluid flow in fluid communication with the wellhead, and an accumulator enabled to activate a blowout preventer installed on the wellhead.

In any of the disclosed embodiments of the multi-service mobile platform, the control cabin may further include at least two hydraulic rams enabled to raise or lower the control cabin relative to the upper level.

In any of the disclosed embodiments, the multi-service mobile platform may further include a plurality of outriggers enabled to structurally support the base platform structure, while the outriggers may increase the weight capacity of the multi-service mobile platform when deployed on the ground. In any of the disclosed embodiments of the multi-service mobile platform, the outriggers may be enabled for lifting off the ground when the mechanical feet walk the multi-service mobile platform.

In any of the disclosed embodiments, the multi-service mobile platform may further include a draw works attached to the upper level, the draw works operating in conjunction with the rotary drive and enabled to raise and lower the telescoping derrick. In any of the disclosed embodiments of the multi-service mobile platform, the draw works may be powered by the hydraulic pressure generator. In any of the disclosed embodiments of the multi-service mobile platform, the draw works may be powered by the electrical power generator.

In any of the disclosed embodiments of the multi-service mobile platform, the base platform structure may further include at least one supplemental box to elevate the multi-service mobile platform by a height of the supplemental box.

In still a further aspect, a second method of transferring a multi-service mobile platform for well servicing between wells is disclosed. The second method may include installing a multi-service mobile platform at a first wellhead. In the second method, the multi-service mobile may include a base platform structure having a lower level and an upper level and four main lift cylinders for raising and lowering the upper level with respect to the lower level, a derrick including a rotary drive installed at a work floor supported by the upper level, a draw works, a blow-out preventer (BOP) enabled for coupling to the first wellhead, an electrical power unit, a hydraulic power unit including a plurality of hydraulic lines, a pipe stand rack a coiled tubing injector, and a pumping manifold. In the second method, the installing may further include pinning the upper level with respect to the lower level, lowering an outrigger to the ground to stabilize the multi-service mobile platform, and connecting the first wellhead in fluid communication with BOP and the pumping manifold. The second method may further include, responsive to a decision to move the multi-service mobile platform from the first wellhead to a second wellhead in vicinity of the first wellhead, preparing the multi-service mobile platform for walking, further including lifting up the outrigger off the ground, disconnecting the first wellhead from fluid communication with the pumping manifold, closing a master valve for the first wellhead, disconnecting the BOP and the pumping manifold from fluid communication with the first wellhead and rest the BOP on a BOP platform at the lower level, and walking the multi-service mobile platform to the second wellhead using the main lift cylinders with the upper level pinned to the lower level, including controlling actuation of base plates and sliding plates respectively attached to each of the main lift cylinders.

In any of the disclosed embodiments of the second method, the multi-service mobile platform may further include a snubbing unit, and a wireline unit.

In any of the disclosed embodiments, the second method may further include controlling actuation of the base plates and the sliding plates to align the multi-service mobile platform with the second wellhead. When the multi-service mobile platform is aligned with the second wellhead, the second method may further include connecting the second wellhead in fluid communication with BOP and the pumping manifold, lowering the outrigger to the ground to stabilize the multi-service mobile platform, and powering on the electrical power unit and the hydraulic power unit to place the multi-service mobile platform in an operational state.

In any of the disclosed embodiments of the second method, the hydraulic power unit and the plurality of hydraulic lines may remain connected during the walking.

In any of the disclosed embodiments of the second method, the coiled tubing injector may remain connected to a coiled tubing reel via coiled tubing during the walking, while the coiled tubing reel may be enabled to move independently on the ground with respect to the multi-service mobile platform.

In any of the disclosed embodiments, the second method may further include moving a pipe handler along with the multi-service mobile platform, while the pipe handler may be enabled to move independently on the ground with respect to the multi-service mobile platform.

In yet a further aspect, a third method of operating a multi-service mobile platform for well servicing is disclosed. The third method may include installing a multi-service mobile platform at a first wellhead. In the third method, the multi-service mobile platform may include a base platform structure having a lower level and an upper level and four main lift cylinders for raising and lowering the upper level with respect to the lower level, a derrick including a rotary drive installed at a work floor supported by the upper level, a draw works, a blow-out preventer (BOP) enabled for coupling to the first wellhead, an electrical power unit, a hydraulic power unit including a plurality of hydraulic lines, a pipe stand rack, a coiled tubing injector, a snubbing unit, a pumping manifold, and a wireline unit. The third method may further include running jointed pipe into the wellhead using the derrick and the draw works, and, after running jointed pipe is completed, running coiled tubing into the wellhead using the coiled tubing injector and a coiled tubing reel located adjacent to the multi-service mobile platform.

In any of the disclosed embodiments, the third method may further include, before the running jointed pipe is completed, using the snubbing unit for running the jointed pipe into the wellhead.

In any of the disclosed embodiments, the third method may further include, after the running coiled tubing is completed, loading the pipe stand rack with pipe using a pipe handler located adjacent to the multi-service mobile platform, and re-running jointed pipe into the wellhead using the derrick and the draw works.

In any of the disclosed embodiments, the third method may further include, prior to the running jointed pipe or subsequent to the re-running jointed pipe, running wireline using the wireline unit into the wellhead.

In any of the disclosed embodiments, the third method may further include, after the running coiled tubing is completed, running wireline using the wireline unit into the wellhead.

In any of the disclosed embodiments, the third method may further include, omitting the running jointed pipe.

In any of the disclosed embodiments, the third method may further include, prior to the running coiled tubing or subsequent to the running coiled tubing, running wireline using the wireline unit into the wellhead.

BRIEF DESCRIPTION OF THE DRAWINGS

For a more complete understanding of the present disclosure and its features and advantages, reference is now made to the following description, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a block diagram of selected elements of an embodiment of a multi-service mobile platform;

FIGS. 2A, 2B, 2C, 2D, 2E, 2F, 2G, 2H, and 2I are depictions of selected elements of an embodiment of a base platform structure used for a multi-service mobile platform;

FIG. 3 is a depiction of selected elements of an embodiment of a work floor with a panorama cabin in a multi-service mobile platform;

FIG. 4 is a depiction of selected elements of an embodiment of a work floor with an auxiliary platform in a multi-service mobile platform;

FIG. 5 is a depiction of selected elements of an embodiment of a lower rear auxiliary platform in a multi-service mobile platform;

FIG. 6A is a depiction of selected elements of an embodiment of a work floor with a derrick in a multi-service mobile platform;

FIG. 6B is a depiction of selected elements of an embodiment of a work floor with a derrick in a multi-service mobile platform;

FIG. 7 is a depiction of selected elements of an embodiment of pipe handling in a multi-service mobile platform;

FIG. 8 is a depiction of selected elements of an embodiment of a wellhead with a blowout preventer (BOP) in a multi-service mobile platform;

FIG. 9 is a depiction of selected elements of an embodiment of a wireline unit in a multi-service mobile platform;

FIG. 10 is a depiction of selected elements of an embodiment of external ground equipment used with a multi-service mobile platform;

FIG. 11A is a depiction of selected elements of an embodiment of walking and positioning of a multi-service mobile platform;

FIG. 11B is a depiction of selected elements of an embodiment of pipe service with a multi-service mobile platform;

FIG. 11C is a depiction of selected elements of an embodiment of pipe service with a multi-service mobile platform;

FIG. 11D is a depiction of selected elements of an embodiment of a rapid change-off between pipe and coiled tubing service with a multi-service mobile platform;

FIG. 12A is a depiction of selected elements of an embodiment of pipe snubbing with a front view of a multi-service mobile platform;

FIG. 12B is a depiction of selected elements of an embodiment of a rear view of a multi-service mobile platform;

FIG. 13A is a depiction of selected elements of an embodiment of platform delivery and installation for a multi-service mobile platform;

FIG. 13B is a depiction of selected elements of an embodiment of platform delivery and installation for a multi-service mobile platform;

FIG. 13C is a depiction of selected elements of an embodiment of panorama cabin height adjustment in a multi-service mobile platform;

FIG. 14 is a depiction of selected elements of an embodiment of a front view in a walking state of a multi-service mobile platform;

FIG. 15 is a depiction of selected elements of an embodiment of another base platform structure used for a multi-service mobile platform;

FIGS. 16A, 16B, and 16C are a flowchart of selected embodiments of a method for installing a multi-service mobile platform; and

FIG. 17 is a flowchart of selected embodiments of a method for transferring a multi-service mobile platform between wells.

DESCRIPTION OF PARTICULAR EMBODIMENT(S)

In the following description, details are set forth by way of example to facilitate discussion of the disclosed subject matter. It should be apparent to a person of ordinary skill in the field, however, that the disclosed embodiments are exemplary and not exhaustive of all possible embodiments.

Throughout this disclosure, a hyphenated form of a reference numeral refers to a specific instance of an element and the un-hyphenated form of the reference numeral refers to the element generically or collectively. Thus, as an example (not shown in the drawings), device “12-1” refers to an instance of a device class, which may be referred to collectively as devices “12” and any one of which may be referred to generically as a device “12”. In the figures and the description, like numerals are intended to represent like elements.

As noted previously, different well servicing operations typically involve the installation and use of specialized equipment that is particular to a single type of well servicing operation. In many cases, specialized service providers offer a particular type of well servicing operation and gain exclusive access to wells when performing their particular service operation, in order to install the specialized equipment.

In one example, the use of jointed pipe for well servicing may involve the installation of a derrick with a rotary drive at the well site, in addition to pipe storage racks and pipe handling equipment. Thus, the deployment of jointed pipe well servicing may accordingly involve the delivery and installation of certain heavy equipment, along with the supporting components for providing electrical power, hydraulic pressure, fluid handling, and support for various bottom hole assemblies (BHAs). Before a single jointed pipe can be introduced into the well with this conventional approach, the well site may be cleared for installation of the jointed pipe heavy equipment, which may involve using a crane to lift equipment into place. Thus, the conventional approach with conventional specialized equipment may involve a large overhead effort to deploy the specialized equipment once a decision has been made to use jointed pipe for well servicing. Such large overhead effort may consume significant resources and, moreover, may result in extended periods of inaccessibility of a particular well site to accommodate the heavy equipment installation effort. This large overhead effort also poses a safety hazard to the personnel performing the installation as well as those in the well pad area.

Continuing with the above example, when a subsequent decision is made to use coiled tubing for well servicing during jointed pipe servicing, in many conventional operations such a change would involve first securing the well with the installed jointed pipe, making the well accessible to equipment to run coiled tubing, and then installing the coiled tubing equipment, before the coiled tubing can be introduced into the well for well servicing. Using typical commercial solutions and services, making the well accessible for coiled tubing may involve removing some or all of the heavy equipment that was previously installed to run jointed pipe in the well. Again, this approach may be inefficient in terms of deployed resources and long installation and uninstallation times during well servicing, which may be economically undesirable and, again, pose a safety hazard to involved personnel.

Similarly, during a jointed pipe run (or while running coiled tubing) during well servicing, it may be observed that the use of a snubbing unit is indicated, such as when pipe light conditions occur. However, when the snubbing equipment and services are obtained from a specialized provider, the snubbing unit may have to be ordered, delivered, and installed, before snubbing can proceed with the jointed pipe (or coiled tubing). Furthermore, such a separate snubbing unit may be delivered with corresponding support equipment (e.g., a hydraulic pressure unit) that may be redundant and may result in duplicate equipment being installed and operated at the well site, which again would be inefficient and resource intensive, and may be economically disadvantageous for this reason. The use of redundant equipment may also include various additional hydraulic pressure lines, power lines, and other connections that may congest work areas, passageways, etc., and may represent additional safety hazards for personnel. In addition, the redundant equipment and associated redundant installation and operational procedures may result in additional personnel who are exposed to the safety hazards.

As will be disclosed in further detail herein, a multi-service mobile platform for well servicing may provide various integrated services and equipment, including jointed pipe, coiled tubing, snubbing, and wireline services. The multi-service mobile platform for well servicing disclosed herein may be enabled for installation at a well site with limited use of a crane and may be predominately delivered and installed using standard truck bed loads on a plurality of trucks that deliver individual components of the multi-service mobile platform. The multi-service mobile platform for well servicing disclosed herein may be modularly constructed with the standard truck-load sized components that can be assembled using a core base platform structure. The multi-service mobile platform for well servicing disclosed herein may include a panorama cabin that provides a centralized control facility for various well servicing operations and that enables users working in the panorama cabin to have an unobscured panorama view of the platform base, the well bore, and the derrick/rotary drive simultaneously. The multi-service mobile platform for well servicing disclosed herein may comprise a box-in-box modular structure having four hydraulic lift cylinders that can raise or lower the platform base as desired. The multi-service mobile platform for well servicing disclosed herein may also comprise mechanical feet on which each of the four hydraulic lift cylinders rests and that enable the multi-service mobile platform to be moved by walking using the mechanical feet. The multi-service mobile platform for well servicing disclosed herein may also be enabled to walk using the mechanical feet in an installed and assembled condition, thereby enabling access to neighboring wells at a pad site having multiple wellbores with relatively little effort and delay, and without disassembly.

Additionally, the multi-service mobile platform for well servicing disclosed herein may provide a centralized source for electrical power that is enabled to supply electrical power to various equipment for jointed pipe, coiled tubing, snubbing, and wireline services. The multi-service mobile platform for well servicing disclosed herein may provide a centralized source for hydraulic pressure that is enabled to supply hydraulic pressure to various equipment for jointed pipe, coiled tubing, snubbing, and wireline services. The multi-service mobile platform for well servicing disclosed herein may further integrate electrical power and hydraulic lines and connections into the multi-service mobile platform to more efficiently use space and reduce obstructed space as compared to various electrical power and hydraulic lines being connected between various pieces of equipment that are individually installed and operated. The multi-service mobile platform for well servicing disclosed herein may integrate various operational and safety features to improve working conditions for personnel working on the multi-service mobile platform. These features, among various additional features, are described in further detail herein for the disclosed multi-service mobile platform for well servicing.

Referring now to FIG. 1, a multi-service mobile platform 100 is shown in a block diagram that is a top view showing various sub-elements and modules. FIG. 1 is a schematic illustration for descriptive purposes and is not necessarily drawn to scale or perspective. As shown in the embodiment depicted in FIG. 1, multi-service mobile platform 100 includes a base platform structure 120, a coiled tubing (CT) handler 126, a derrick/rotary drive 122, at least one pipe stand rack 115, a snubbing unit 128, and a panorama cabin platform 124. Also included with multi-service mobile platform 100 in FIG. 1 are an electric power unit 116, a hydraulic pressure unit 118, a jointed pipe handler 114, a left auxiliary platform 125, a rear auxiliary platform 130, and a wireline unit 112. As shown, snubbing unit 128 in FIG. 1 may be positioned over a well center (not shown in FIG. 1) in operation, while CT handler 126 may also be aligned with the well center. As shown in FIG. 1, jointed pipe handler 114 is in an offset position to the well center, but can be moved or rotated into position to be able to access the well center and pipe stand racks 115 in operation. Thus, in the configuration shown in FIG. 1, multi-service mobile platform 100 is particularly intended for well servicing operations, such as well completion and workover operations. Furthermore, reference is made herein to an operator's side and an off operator's side (or left side and right side, or simply left and right) with respect to various elements, platforms, and equipment included with multi-service mobile platform 100, and to a forward direction (or front), given by arrow 140 in FIG. 1, and a rear direction (or rear) which is opposite of the arrow 140. It will be understood that the relative orientation and placement of elements may be arbitrary, such that various elements may be located at different locations and different sides of multi-service mobile platform 100 in different implementations.

As will be described in further detail herein, multi-service mobile platform 100 is presented as a single, modular, integrated, multi-function, and self-contained well intervention rig that may perform well intervention at any stage of well life. As shown and described herein, multi-service mobile platform 100 may be constructed using base platform structure 120 as a base element. Base platform structure 120 may comprise a rig base platform having a lower box structure and an upper box structure (see e.g., FIG. 2A) that are collapsible within each other. The lower box structure may remain on the ground, while the upper box structure can be used to raise or lower a working surface of multi-service mobile platform 100, along with other elements that are fixed to the upper box structure. Each of the lower box structure and the upper box structure may be comprised of two separate boxes on the left side and the right side of base platform structure 120, with each of the two separate boxes having two respective main hydraulic cylinders on the left side and the right side, for a total of four main hydraulic cylinders. The main hydraulic cylinders may be dimensioned to lift the entire upper box structure and various elements attached to the upper box structure, as shown in the block diagram of FIG. 1. For example, the main hydraulic cylinders may be used to raise and lower the upper box structure relative to the lower box structure during initial installation of multi-service mobile platform 100. For example, various auxiliary platforms and auxiliary loads may be delivered on trucks for installation on the base platform structure 120. The truck may be driven to a position adjacent to base platform structure 120, while the height of the upper box structure may be lowered to align a bottom edge of the upper box structure with the height of the truck bed (see also FIGS. 2I and 13A). Then, the auxiliary platform load on the truck bed may be aligned with and fastened to the upper box structure, and the main hydraulic cylinders are then used to raise the auxiliary platform load off the truck bed, as the truck departs unloaded. A similar process may be used to attach various components and elements to multi-service mobile platform 100 using standard truck-sized modular loads. In this manner, the extended use of an expensive crane to unload heavy structural elements of multi-service mobile platform 100 may be avoided, which is economically and logistically desirable, and further enables multi-service mobile platform 100 to be installed at remote locations with greater ease and more safely. Because of the modular integrated design of multi-service mobile platform 100, the main hydraulic cylinders may also be used to raise or lower the upper box structure and attached elements to a desired height while multi-service mobile platform 100 is operational yet stationery. The upper box structure may accordingly support derrick/rotary drive 122, snubbing unit 128, electrical power unit 116, hydraulic pressure unit 118, panorama cabin 124, auxiliary platform 125, and wireline unit 112 while multi-service mobile platform 100 is operational.

In addition to raising and lowering the upper box structure when base platform structure 120 is stationery, the main hydraulic cylinders may be equipped with so-called ‘walking feet’ (see also FIGS. 2A, 2B, 2C, walking foot 242), which are additional mechanical supports that enable multi-service mobile platform 100 to ‘walk’ in a process that involves individual steps, or incremental movements. Specifically, a walking foot may comprising a base plate to which a sliding plate is attached, along with lateral cylinders to actuate the sliding plate relative to the base plate. The base plate may further rotate in 90 degree increments to enable walking in four directions: front, back, left, and right. When the sliding plate is aligned with the base plate, the sliding plate can move to an offset position relative to the base plate. When the sliding plate is offset from the base plate, the sliding plate can move to an aligned position relative to the base plate. Furthermore, when a walking foot (i.e., the base plate) is on the ground and the sliding plate is actuated, multi-service mobile platform 100 will be moved by the four sliding plates being actuated while being slightly raised using the main hydraulic cylinders. When a walking foot is raised off the ground and the sliding plate is actuated, the base plate will move relative to the sliding plate. Accordingly, a walking motion of base platform structure 120 (e.g., when multi-service mobile platform 100 is in a walking state as shown in FIG. 14) may be achieved with the following operations, which may be concurrently performed with respect to each of the four walking feet:

-   -   a. the upper box structures are raised to the mechanical limit         and are rigidly fixed relative to the lower box structures to         prevent lowering (e.g., pinned in place);     -   b. multi-service mobile platform 100 rests on the ground,         walking feet are on the ground in the aligned position         (operational state);     -   c. the main hydraulic cylinders are lifted slightly to raise the         base plates off the ground, while the lower box structures         remain on the ground;     -   d. the sliding plates are actuated to the offset position, which         moves the base plate when in the air, such that the choice of         the offset position determines the direction and step length of         the next step distance;     -   e. main hydraulic cylinders are lowered to place the base plates         with the sliding plates in the offset position on the ground and         extended further in height to raise multi-service mobile         platform 100 off the ground, resting only on the base plates;     -   f. on the ground, the sliding plates are actuated to displace         multi-service mobile platform 100 by the next step distance         towards the base plates, bringing the sliding plates in the         aligned position; and     -   g. retracting the main hydraulic cylinders until multi-service         mobile platform 100 again rests on the ground.

Accordingly, the operations b. through g. above may be repeated to move multi-service mobile platform 100 without having to disassemble operational components, including moving base platform structure 120 with the lower box structure and the upper box structure and any attached elements in place. It is noted that certain components may be stowed or removed prior to operation a in preparation for walking. Additionally, certain components, such as CT reel trailer 1012 (see FIGS. 11C, 11D) may be functionally attached to base platform structure 120, but may be independent components on the ground that may move along with base platform structure 120 during walking. Again, because of the modular and integrated design of multi-service mobile platform 100, as described herein, the main hydraulic cylinders with the walking feet may enable movement or translation of multi-service mobile platform 100 in any direction in an assembled and at least partially operational state, which is desirable.

The walking movement of multi-service mobile platform 100 may accordingly enable access to multiple wellheads that may be in proximity to one another, such as is commonly arranged at the surface of a well pad. The ability to move multi-service mobile platform 100 from one wellhead to any adjacent wellhead in an assembled and operational state is a desirable feature that provides economic and safety benefits by reducing the time, effort, and personnel for repositioning multi-service mobile platform 100 to access a different wellhead. Additional safety benefits may accrue as a result of eliminating various other operations, equipment, and congested work areas, as described previously. It is noted that without the ability to position multi-service mobile platform 100 with the walking movement, the time and effort to reposition would be much greater because conventional rigs are not mobile and such movement would involve disassembling and reassembling structural elements at each successive wellhead, even when adjacent wellheads are relatively close together. In some implementations, base platform structure 120, including the main hydraulic cylinders and the walking feet, may be a box-in-box structure, such as supplied by NOV, Inc., and may be modified and adapted to construct multi-service mobile platform 100, as described herein. In other implementations, base platform structure 120 may be realized using a box-on-box structure (see also FIG. 15).

With derrick/rotary drive 122 and CT handler 126, which are aligned with the well center, multi-service mobile platform 100 is enabled to supply both jointed pipe and coiled tubing for various well servicing operations. During use, the coiled tubing injector associated with CT handler 126 may be mounted to the derrick (shown schematically in aggregate as derrick/rotary drive 122 in FIG. 1, see also derrick 610 in FIGS. 6 and 14, and CT injector 342 in FIG. 3). The coiled tubing injector may be removed from a working position on the derrick and may be placed on left auxiliary platform 125 (off-operator's side) when not in use, for example, using a crane arm mounted to the derrick (see also left auxiliary platform 125 in FIGS. 3 and 4) While the rotary drive can move vertically on the well-center along the derrick using hydraulics or a system of pulleys (see also draw works 320, FIG. 5) fixed to base platform structure 120, the rotary drive is fixed to the derrick, which is hoisted at a fixed position on a working surface of base platform structure 120.

With the inclusion of snubbing unit 128 along with the other elements described herein, multi-service mobile platform 100 may provide various well servicing functionality in a single rig, including coiled tubing, jointed pipe, snubbing, and wireline services. Multi-service mobile platform 100 is configured for rapid delivery and installation, using standard truck loads to deliver and install various components onto base platform structure 120. In typical implementations, multi-service mobile platform 100 may be installed for use at a well head within about approximately twelve (12) hours, which is very fast compared to conventional well servicing equipment and is, therefore, economically desirable. As will be described in further detail herein, multi-service mobile platform 100 may be enabled to move as a self-propelled, walking structure between wellheads in an assembled and operational state.

In FIGS. 2A through 14, various depictions and views of multi-service mobile platform 100 in various states of assembly are shown and are described below. Although the depictions of multi-service mobile platform 100 may appear realistic in 3-dimensions, the depictions are intended to be schematic in nature and are not necessarily drawn to scale or perspective. Therefore, it will be understood that various elements, connections, lines, fittings, fasteners, hinges, pins, etc. and some smaller details may be omitted from the depictions for descriptive purposes, which are intended to describe elements of multi-service mobile platform 100 in various operational states with a clear view of the indicated elements. Due to the complex geometric and multi-level nature of multi-service mobile platform 100, certain elements may be obstructed from any given view, and different views are accordingly shown to give an overall description. The equipment and structural elements in the depictions of multi-service mobile platform 100 shown and described below are also shown in schematic form, but are intended to represent various different kinds of operational equipment and structural elements, as may be used for well servicing operations. In the description below and in FIGS. 2A through 14, certain elements may be repeated and may be shown from different perspectives or views. For example, a derrick is depicted that is intended to be operable and suitably aligned with the wellhead, but may appear out of alignment with the wellhead in various perspectives or views. Although certain elements are referenced with an element number in any one or more of the figures, a depicted element may remain without the element number (usually in a subsequent figure) in certain figures for descriptive clarity and for purposes of descriptive context.

Referring now to FIG. 2A, a base platform structure 200-1 is shown in a perspective view and may comprise at least certain portions of base platform structure 120 referenced previously with respect to FIG. 1. In FIG. 2A, base platform structure 200-1 is depicted in an installed state for use with multi-service mobile platform 100, yet without various elements and auxiliary platforms, which are omitted to provide a clearer view for descriptive purposes. As shown in FIG. 2A, base platform structure 200-1 is comprised of a right portion 210 referenced as the operator's side, and a left portion 212 referenced as the off-operator's side. Each of right portion 210 and left portion 212 is associated with a corresponding portion of the work floor of multi-service mobile platform 100, which forms a top surface, respectively as shown (see also FIG. 3).

As shown in FIG. 2A, each of right portion 210 and left portion 212 respectively comprise an top box 226 (also referred to as an upper level) and a bottom box 228 (also referred to as a lower level). Specifically, right portion 210 comprises top box 226-1 and bottom box 228-1, while left portion 212 comprises top box 226-2 and bottom box 228-2. In normal operational states, bottom boxes 228 remain on the ground while top boxes 226 can be lowered or raised in unison, such that top box 226 encloses and mates with bottom box 228, while top boxes 226 generally remain at the same height. Accordingly, four main lift cylinders 230 are provided to enable the raising and lowering of top boxes 226 relative to bottom boxes 228. Specifically, right portion 210 comprises main lift cylinders 230-1 and 230-2, while left portion 212 comprises main lift cylinders 230-3 and 230-4. Also visible in FIG. 2A are walking feet 242, which are used as a static base for each respective main lift cylinder 230, as in the operational state of multi-service mobile platform 100.

In base platform structure 200-1, top boxes 226 and bottom boxes 228 are depicted in a fixed, installed position corresponding to an operational state of multi-service mobile platform 100. For example, top boxes 226 may be pinned to bottom boxes 228 to prevent raising and lowering, and to relieve main lift cylinders 230 from carrying the weight of multi-service mobile platform 100. Additionally, various elements have been installed within top boxes 226, for example, that may prevent lowering or raising and may be removed to enable lowering or raising, such as stairs 218-1 and 218-2, BOP access platforms 220, and internal platforms 221.

Visible at the top surface of each of right portion 210 and left portion 212 are two derrick mounts 240, which are used to support a derrick 610 (not shown in FIG. 2A, see FIG. 6A). Accordingly, right portion 210 and left portion 212 are arranged symmetrically and in a specified position about a location for a wellbore, over which derrick 610 may be centered and aligned using derrick mounts 240. Also visible at the top surface of each of right portion 210 and left portion 212 are hatches 219-1 and 219-2, which respectively provide access to stairs 218-1 and 218-2.

As shown in FIG. 2A, base platform structure 200-1 may further include a hydraulic bulkhead 214-2, shown on left portion 212. Hydraulic bulkhead 214-2 may be internally connected within base platform structure 120 to hydraulic pressure unit 118 and may provide break out connections for external equipment, such as ground equipment. Because of the internal hydraulic connections that may be routed along various members of base platform structure 200-1 to hydraulic bulkhead 214-2, the internal hydraulic connections (not visible) are not exposed and do not take up precious floor space used by personnel, which is desirable for safe and orderly operation. Also shown with base platform structure 200-1 are outriggers 216, which may be structural elements used to stabilize multi-service mobile platform 100 when installed and in an operational state. In certain implementations, outriggers 216 may be removed or stowed (such as by folding on a hinge) when multi-service mobile platform 100 is moved by walking, and may be reinstalled at the operational location. Also depicted in FIG. 2A are various mounting plates 250 at external edges of top boxes 226. Mounting plates 250 may be used for attaching various different auxiliary platforms to top boxes 226, as will be described in further detail below. Mounting plates 250 may include a hole for a fastener, such as a pin, that mates or penetrates with a corresponding plate with a hole in the auxiliary platform, in order to secure the auxiliary platform to the top box 226.

Absent from FIG. 2A are work floor panels 324 and 326 (see FIG. 3), also referred to as leaves or floor sections, between the top surfaces of right portion 210 and left portion 212, which are removed to enable a view of a BOP 222, shown in a stowed position in base platform structure 200-1. Also shown in FIG. 2A are BOP access platforms 220 in a deployed horizontal state and usable for personnel to access the wellhead area and BOP 222. BOP access platforms 220 may be foldable to an upright position (or removable) for stowing or to enable other equipment to be moved into place.

In FIG. 2A, BOP 222 is mounted on a BOP frame 244 that runs on BOP rails 224, which enable BOP frame 244 to slide over BOP crossbeams 238 that support the weight of BOP 222 and BOP rails 224 (BOP frame 244 obscured from view in FIG. 2A, see FIG. 2C). As shown, BOP crossbeams 238 may run in an open side of beam rails 236, which are respectively provided along an inner lower edge of top boxes 226. Specifically, beam rail 236-1 is formed or attached at the inner lower edge of top box 226-1, while beam rail 236-2 is formed or attached at the inner lower edge of top box 226-2. Furthermore, beam rails 236 may be open at a rear end (not visible in FIG. 2A) from where the entire BOP assembly, including BOP crossbeams 238, BOP rails 224, and BOP 222, may be installed by having BOP crossbeams 238 slide into beam rails 236. For example, the BOP assembly may be delivered on a truck bed, and as top boxes 226 are raised such that BOP crossbeams 238 on the truck bed are at the same height as beam rails 236 on top boxes 226, the BOP assembly may be unloaded directly from the truck bed onto beam rails 236.

FIG. 2B shows a base platform structure 200-2 that is substantially similar to base platform structure 200-1 in FIG. 2A, but shown from a different perspective. Accordingly, the elements referenced above with respect to FIG. 2A are shown, where possible, in FIG. 2B. Also visible in FIG. 2B is hydraulic bulkhead 214-1 on bottom box 228-1, which may provide external hydraulic lines to the operator's side (right side) of multi-service mobile platform 100.

In FIG. 2C, a right portion cut-away view 200-3 of right portion 210 and the BOP assembly are shown. Various elements described and shown previously with respect to FIGS. 2A and 2B are visible in right portion 210 in FIG. 2C. In particular, FIG. 2C shows the BOP assembly in a position after delivery and introduction into beam rail 236-1 (beam rail 236-2 is not visible in FIG. 2C). Specifically, BOP 222 is mounted on BOP frame 244 that runs in BOP rails 224 at a rearward position.

In FIG. 2D, a right portion cut-away view 200-4 of right portion 210 and the BOP assembly are shown in a substantially similar view and manner as in FIG. 2C above. Various elements described and shown previously with respect to FIGS. 2A and 2B are visible in right portion 210 in FIG. 2D. In particular, FIG. 2D shows BOP 222 and BOP frame 244 moved forward into position from the delivery position shown in FIG. 2C.

In FIG. 2E, a right portion cut-away view 200-5 of right portion 210 and the BOP assembly are shown in a substantially similar view and manner as in FIG. 2C above. Various elements described and shown previously with respect to FIGS. 2A and 2B are visible in right portion 210 in FIG. 2E. In particular, FIG. 2E shows BOP 222 and BOP frame 244 being tilted into an operational position, as would be the case over a wellhead for installation of BOP 222. Because BOP rails 224 and BOP crossbeams 238 may remain with multi-service mobile platform 100, BOP 222 mounted on BOP frame 244 may be easily stowed and reinstalled when a move from one wellhead to another wellhead is made. For example, personnel may perform work on the wellhead or BOP from BOP access platform 220 or internal platform 221.

In FIG. 2F, a left portion cut-away view 200-6 of left portion 212 is shown. Various elements described and shown previously with respect to FIGS. 2A and 2B are visible in left portion 212 in FIG. 2F. Although the BOP assembly is not shown in FIG. 2F, it will be understood that BOP crossbeams 238 run in beam rail 236-2 that is located at an inner lower edge of top box 226-2.

In FIG. 2G, a top view 200-7 of right portion 210 and left portion 212 and the BOP assembly are shown. Top view 200-7 corresponds to the BOP assembly position shown in FIG. 2D in right portion cut-away view 200-4. Various elements described and shown previously with respect to FIGS. 2A and 2B are visible in top view 200-7 in FIG. 2G.

In FIG. 2H, a raised base platform structure 200-8 is shown. Various elements described and shown previously with respect to FIGS. 2A and 2B are visible in base platform structure 200-8 in FIG. 2H. As shown, base platform structure 200-8 may be used for wellheads that are elevated above ground level. In FIG. 2H, four supplemental boxes 260 are shown elevating bottom boxes 228 above the ground, corresponding to each of the four main lift cylinders 230. Specifically, in right portion 210, supplemental box 260-1 is used at main lift cylinder 230-1 and supplemental box 260-2 is used at main lift cylinder 230-2, while in left portion 212, supplemental box 260-3 is used at main lift cylinder 230-3 and supplemental box 260-4 is used at main lift cylinder 230-4. In particular implementations, bottom boxes 228 may be installed upon and attached to supplemental boxes 260 when bottom boxes 228 are delivered. Furthermore, it is noted that main lift cylinders 230 may be implemented in a variety of configurations. For example, the working lifting distance of main lift cylinders 230 may vary in different embodiments. In certain implementations, main lift cylinders 230 may be telescopic to enable a larger working lifting distance (height), for example, that is greater than a sum of heights of bottom box 228 and top box 226.

In FIG. 2I, a base platform structure 200-9 is shown with top boxes 226 partially lowered. Various elements described and shown previously with respect to FIGS. 2A and 2B are visible in base platform structure 200-9 in FIG. 2I. As shown in base platform structure 200-9, internal elements in top boxes 226 have been removed, such as internal stairs 218, to enable lowering of top box 226 to enclose bottom box 228. As evident in FIG. 2I, top boxes 226 may be lowered to any desired height with respect to bottom boxes 228. As described above, top boxes 226-1 and 226-2 may be kept at the same height during raising and lowering to ensure that all platforms and work floors remain level in multi-service mobile platform 100. In particular, it is noted that BOP 222 is also raised and lowered along with top boxes 226 in the stowed position shown in FIG. 2I.

Referring now to FIG. 3, a work floor view 300 is shown as a perspective view from the rear and may comprise at least certain portions of multi-service mobile platform 100, including a panorama cabin 310 (also referred to as a control cabin or office container, etc.), as disclosed herein. Various elements described and shown previously with respect to FIGS. 2A and 2B are visible in work floor view 300 in FIG. 3. In FIG. 3, multi-service mobile platform 100 is depicted in a partially installed state in which certain elements may be omitted to provide a clearer view for descriptive purposes. For example, derrick 610 is omitted from work floor view 300 so as not to obscure the view of elements shown in FIG. 3. As shown in FIG. 3, right portion 210 is visible as a portion of the work floor on the operator's side, while left portion 212 is visible as a portion of the work floor on the off-operator's side.

As shown in work floor view 300, an opening 332 is aligned with the wellhead below and forms the center of the work floor. Around opening 332 in the work floor, a rotary panel 330 is in place where a rotary table may be installed. The work floor between right portion 210 and left portion 212 has been filled with four (6) work floor panels, including two (2) rear work floor panels 324, two (2) central work floor panels 326, and two (2) front work floor panels 325, which may be steel leaves that are hingeably attached to the work floor. The work floor panels 324 and 326 may be individually installed for flexible allocation of the work floor, as desired. The work floor panels 324 and 326 may be enabled for lifting up to access or view the space below, as desired.

In FIG. 3, at the outer respective sides of right portion 210 and left portion 212, different auxiliary platforms are shown attached to multi-service mobile platform 100. Specifically, panorama cabin platform 124 is shown attached to right portion 210 on the operator's side and includes a panorama cabin 310, hydraulic pressure unit 118, and accumulator tanks 410 (see also FIG. 4). Accumulator tanks 410 are shown on right portion 210 in proximity to hydraulic pressure unit 118 to provide hydraulic pressure storage or reserves, such as a pressure reserve capable of actuating BOP 222 at short notice in an emergency. (Delivery and installation of panorama cabin platform 124 is shown and described in further detail with respect to FIGS. 13A and 13B.)

As depicted, panorama cabin 310 may be similar to a building container used to house workstations for personnel in a conventional drilling rig, but is equipped with panorama windows 312 that extend from the roof to the operator's side floor facing the work floor. Additionally, the panorama windows may wrap around an end portion 310-1 of panorama cabin 310 in order to extend visibility at the wellhead and to other ground equipment, such as jointed pipe handler 114 and CT handler 126 (see also FIG. 14). In this manner, panorama cabin 310 may enable personnel inside panorama cabin 310 to view nearly all activity and ongoing operations, with a continuous view extending from the rotary drive at the top of derrick 610 down to the work floor, and even further below to BOP access platform 220, for example, when at least one work floor panel has been removed. Additionally, panorama cabin 310 may itself be independently adjusted in height using cabin lifts 616 (not visible in FIG. 3, see FIG. 6) relative to the work floor for specific situations and work floor configurations. Cabin lifts 616 may comprise at least one hydraulic cylinder enabled to raise and lower panorama cabin 310.

Additionally, panorama cabin 310 may provide integrated control systems in a common location to operate various equipment included with multi-service mobile platform 100, which may be substantially different from conventional drilling environments, where each type of well servicing equipment may be associated with an individual dedicated control system that is also individually installed and removed with the corresponding well servicing equipment. Specifically, panorama cabin 310 may be a central hub for various electrical wiring for signals and power supplies to different distributed equipment in multi-service mobile platform 100. As a central hub, panorama cabin 310 may itself house various control systems (e.g., programmable logic controllers or computer systems) in a common location from where different elements included in multi-service mobile platform 100 are centrally controlled. Accordingly, panorama cabin 310 may include at least one workspace for a control operator, such as a workstation that has a user interface to one or more of the control systems to enable monitoring, supervision, response, communication, actuation, programming, scheduling of various control tasks, among others, associated with drilling equipment. The control systems housed in panorama cabin 310 may include control systems for: derrick/rotary drive 122, draw works 320, snubbing unit 128, CT handler 126, wireline unit 112, hydraulic pressure unit 118, electrical power unit 116, jointed pipe handler 114, among others. In particular embodiments, panorama cabin 310 may include a first workstation to control derrick/rotary drive 122, draw works 320, and snubbing unit 128, as well as a second workstation to control CT handler 126 and wireline unit 112. Additionally, panorama cabin 310 may have a heating, ventilation, and air conditioning (HVAC) system in order to regulate temperature in indoor spaces where operators are located (i.e., at the workstations) as well as to cool the common electrical equipment housed within panorama cabin 310, which may include network equipment to facilitate networking and communication among the various workstations and control systems. It is noted that a particular aspect of multi-service mobile platform 100 is the inclusion of electrical power unit 116, which may be used to power equipment (e.g., the workstations, control equipment, network equipment, etc.) in panorama cabin 310 as well as other drilling equipment. For example, electrical power unit 116 may serve as a primary power source for at least derrick/rotary drive 122, CT handler 126, snubbing unit 128, wireline unit 112, and panorama cabin 310. In this manner, electrical connections, such as for power and electrical signals, may be reduced, as compared with an external electrical power source, and the electrical connections may be housed in channels that are integrated into structural members of multi-service mobile platform 100, such as base platform structure 120.

At the off operator's side in FIG. 3, left auxiliary platform 125 is shown installed to left portion 212 to extend the work floor. Left auxiliary platform 125 may be used to stow equipment for ease of access, such as a coiled tubing (CT) injector 342 and snubbing unit 128. Also shown installed on left auxiliary platform 125 is a choke manifold 344 (also referred to as a pumping manifold), which may be used for pumping fluids into or out of the wellhead. Flexible pressure lines (not shown) may be connected to choke manifold 344 and may be stowed within left portion 212, for example. The flexible pressure lines may be used to connect choke manifold 344 to the BOP 222 and to an external pump or other external equipment on the ground (see also FIG. 10).

As shown in work floor view 300, at the front of work floor panel 326 on the off-operator's side, floor rails 345 have been installed that lead from left auxiliary platform 125 and over left portion 212 towards opening 332. Floor rails 345 are enabled to receive a trolley 343 that is shown supporting CT injector 342 and snubbing unit 128 stowed at left auxiliary platform 125. In this manner, CT injector 342 may be moved into position for use near opening 332 to access the wellhead with CT, and may be easily moved to the side by hand for rapid stowing away from opening 332, to keep opening 332 clear for other servicing operations without undue effort or delay. Although CT injector 342 and snubbing unit 128 are shown as separate equipment, it will be understood that in some embodiments, the mechanical functionality of CT injector 342 and snubbing unit 128 may be combined into a single apparatus that can alternate between pipe service and CT service without removal from an operational location or during use.

Also shown in work floor view 300 attached to left portion 212, at a lower outer edge of top box 226-2 (not visible in FIG. 3) is a lower left auxiliary platform 338, which is used to stow a drill line spool 336.

Still further shown in FIG. 3 attached to right portion 210 and left portion 212 at rear bottom edges of top boxes 226 is rear auxiliary platform 130. Rear auxiliary platform 130 is shown with a backup hydraulic power unit 316 and a draw works 320. Backup hydraulic power unit 316 may be a redundant unit for hydraulic power unit 118. Stairs 318 may lead from panorama cabin platform 124 to rear auxiliary platform 130, which may have additional stairs to the ground (not visible in FIG. 3). In particular, hydraulic power unit 118 may be configured for efficient and scalable operation by including a plurality of hydraulic pumps (not shown) that are activated according to an actual pressure demand for hydraulic fluid in multi-service mobile platform 100. For example, when relatively little hydraulic pressure is used in multi-service mobile platform 100, a single one of the hydraulic pumps may be activated for sufficient supply to save power or fuel. As the pressure demand for hydraulic fluid increased, additional ones of the hydraulic pumps included with hydraulic power unit 118 may be activated, as indicated, such that at maximum pressure demand for hydraulic fluid, all hydraulic pumps are activated.

At a front of the work floor in work floor view 300, pipe stand racks 328 are installed on each side, with a pipe stand rack 115-1 on the operator's side, and a pipe stand rack 115-2 on the off-operator's side, shown on work floor panels 325 and 326, for example. As shown, pipe stand racks 115 are enabled to hold approximately 30 foot pipe sections. It is noted that jointed pipe handler 114 in conjunction with derrick 610 may be enabled to handle single, double, or triple pipe sections in a single pipe feed operation to improve efficiency of pipe service by multi-service mobile platform 100.

Referring now to FIG. 4, a work floor view 400 is shown as a perspective view from the front and may comprise at least certain portions of multi-service mobile platform 100, including left auxiliary platform 125, as disclosed herein. Various elements described and shown previously with respect to FIGS. 2A, 2B, and 3 are visible in work floor view 400 in FIG. 4. In FIG. 4, multi-service mobile platform 100 is depicted in a partially installed state in which certain elements may be omitted to provide a clearer view for descriptive purposes. For example, derrick 610 is omitted from work floor view 400 so as not to obscure the view of elements shown in FIG. 4. As shown in FIG. 4, left portion 212 is visible as a portion of the work floor on the off-operator's side.

In work floor view 400, a slightly different arrangement at left auxiliary platform 125 is shown as compared to work floor view 300 in FIG. 3. Specifically, in FIG. 4, floor rails 345 are shown conveying CT injector 342 on trolley 343. Also in FIG. 4, snubbing unit 128 is stowed on left auxiliary platform 125, where choke manifold 344 is also located. Also visible in FIG. 4 is wireline unit 112, which is located on left portion 212 and left auxiliary platform 125 and is angled to have a direct line of access to opening 332 that is aligned with the wellhead (not visible in FIG. 4). Also visible in FIG. 4 are front stairs 412, which may be used to access the ground and may provide a pathway to safety for personnel in an emergency.

Referring now to FIG. 5, a work floor view 500 is shown as a perspective view from the rear and may comprise at least certain portions of multi-service mobile platform 100, including rear auxiliary platform 130, as disclosed herein. Various elements described and shown previously with respect to FIGS. 2A, 2B, 3, and 4 are visible in work floor view 500 in FIG. 5. In FIG. 5, multi-service mobile platform 100 is depicted in a partially installed state in which certain elements may be omitted to provide a clearer view for descriptive purposes. For example, derrick 610 is omitted from work floor view 500 so as not to obscure the view of elements shown in FIG. 5. As shown in FIG. 5, rear auxiliary platform 130 is visible as a portion of the work floor at the rear, as described previously, and is shown with backup hydraulic power unit 316, draw works 320, along with electrical power unit 116. Also shown are stairs 318 leading from panorama cabin platform 124 to rear auxiliary platform 130, as well as stairs 510 leading from rear auxiliary platform 130 to the ground.

Referring now to FIG. 6A, a work floor view 600 is shown as a perspective view from the front and may comprise at least certain portions of multi-service mobile platform 100, including derrick 610, as disclosed herein. Various elements described and shown previously with respect to FIGS. 2A, 2B, 3, and 4 are visible in work floor view 600 in FIG. 6A. In FIG. 6A, multi-service mobile platform 100 is depicted in a partially installed state in which certain elements may be omitted to provide a clearer view for descriptive purposes. As shown in FIG. 6A, CT injector 342 has been moved using trolley 343 (not visible in FIG. 6A, see FIG. 4) along floor rails 345 to a working proximity to snubbing unit 128 installed on BOP 222, and is shown being raised by a crane arm 620 installed on derrick 610. Crane arm 620 may be enabled to hoist CT injector 342 (or snubbing unit 128) into a working location at BOP 222. Also visible in FIG. 6A due to removal of certain portions of the work floor for descriptive purposes is BOP 222, on which snubbing unit 128 has been installed for operation at the wellhead.

Also visible in work floor view 600 is derrick 610 mounted on derrick mounts 240 and an auto-torque torque wrench 618. In particular implementations, derrick 610 may be a telescopic derrick having adjustable height that is pinned to derrick mounts 240 on the work floor of multi-service mobile platform 100, as shown. The height adjustment may be performed using draw works 342 (not visible in FIG. 6A, see FIG. 5) to raise and lower derrick 610 when telescopic. Furthermore, the adjustable height of derrick 610 may be combined with crane arm 620 attached to derrick 610 that may be used for lifting equipment to and from the working area of the wellhead at opening 330 to which derrick 610 is aligned, such as snubbing unit 128 and CT injector 342. Also, derrick 610 itself may serve or provide a tie-off point for CT injector 342 when in use, to support an upright position of CT injector 342, and the tie-off point may also be adjustable in height, or may provide selection among a plurality of specific heights. In FIG. 6A, panorama cabin platform 124 is shown with panorama cabin 310 being raised using cabin lifts 616 at the operator's side and a front panorama window portion 312-1 of panorama windows 312 that provides a full working view of the wellhead and surroundings is also visible.

Referring now to FIG. 6B, a work floor view 601 is shown as a perspective view from the front and may comprise at least certain portions of multi-service mobile platform 100, including derrick 610, as disclosed herein. Various elements described and shown previously with respect to work floor view 600 in FIG. 6A are visible in work floor view 601 in FIG. 6B. As shown in FIG. 6B, CT injector 342 has been moved using trolley 343 (not visible in FIG. 6A, see FIG. 4) along floor rails 345 to a working position installed on BOP 222, and is shown enabled for feeding CT 612 (not shown) to BOP 222. Meanwhile, crane arm 620 has lifted snubbing unit 128 back onto trolley 343 along floor rails 345 for stowing on left auxiliary platform 125.

Referring now to FIG. 7, a view 700 of pipe handling using jointed pipe handler 114 comprising a robotic pipe arm 710 and pipe bins 712 is shown as a perspective view from the front and may comprise at least certain portions of multi-service mobile platform 100, as disclosed herein. Various elements described and shown previously with respect to FIGS. 2A, 2B, 3, 4, 5, 6A, and 6B are visible in view 700 in FIG. 7. In FIG. 7, multi-service mobile platform 100 is depicted in a partially installed state in which certain elements may be omitted to provide a clearer view for descriptive purposes.

As shown in FIG. 7, robotic pipe arm 710 has been delivered as external equipment to multi-service mobile platform 100 and has been positioned for use between pipe stand racks 115-1 and 115-2. For example, jointed pipe handler 114 may itself be a mobile unit that operates from a truck bed or trailer, as shown. In view 700, it may be assumed that robotic pipe arm 710 has previously unloaded pipe bins 712-1 and 712-2 into pipe stand racks 115-1 and 115-2, respectively, which still have a supply of pipe. Accordingly, as shown, robotic pipe arm 710 may operating to feed a pipe 714 into pipe stand rack 115, and may be assisted by the rotary drive in this process. Pipe 714 may be attached using auto-torque torque wrench 618, and may be lowered into BOP 222 using the rotary drive and draw works 320 (not visible in FIG. 7). It is noted that other equipment (not shown) may also be used to work pipe 714 in different implementations. For example, a pair of power tongs (not shown) may be used to handle or work pipe 714. Draw works 320 may raise and lower the rotary drive from within derrick 610 and use a system of pulleys on the work floor with the drill line. It will be understood that jointed pipe handler 114 may also be used with snubbing unit 128, in various implementations or configurations of multi-service mobile platform 100. In FIG. 7, crane arm 620 is shown in a stowed configuration at a side of derrick 610.

Referring now to FIG. 8, a wellhead view 800 of a wellhead 810 is shown as a front view with BOP 222 and with an underground sectional view and may comprise at least certain portions of multi-service mobile platform 100, as disclosed herein. Various elements described and shown previously with respect to FIGS. 2A, 2B, 3, 4, 5, 6A, and 6B are visible in wellhead view 800 in FIG. 8. In FIG. 8, multi-service mobile platform 100 is depicted in a partially installed state in which certain elements may be omitted to provide a clearer view for descriptive purposes. In FIG. 8, wellhead 810 is shown recessed into the ground such that a top of a main valve 812 of wellhead 810 is approximately at ground level. In the configuration shown in wellhead view 800, BOP 222 is used with snubbing unit 128.

Referring now to FIG. 9, an off-operator's side view 900 is shown as a front perspective with wireline unit 112 and may comprise at least certain portions of multi-service mobile platform 100, as disclosed herein. Various elements described and shown previously with respect to FIGS. 2A, 2B, 3, 4, 5, 6A, and 6B are visible in off-operator's side view 900 in FIG. 9. In FIG. 9, multi-service mobile platform 100 is depicted in a partially installed state in which certain elements may be omitted to provide a clearer view for descriptive purposes. In FIG. 9, wireline unit 112 is shown stowed at left auxiliary platform 125, as shown and described previously, while lower left auxiliary platform 338 is shown stowing drill line spool 336. Also visible in FIG. 9 is CT injector 342 in a stowed location on trolley 343 and moved to a standby position along floor rails 345

Referring now to FIG. 10, a view 1000 of external ground equipment is shown as a perspective view from a distance and may comprise at least certain portions of multi-service mobile platform 100, as disclosed herein. Various elements described and shown previously with respect to FIGS. 2A, 2B, 3, 4, 5, 6A, 6B, and 7 are visible in view 1000 in FIG. 10. In FIG. 10, multi-service mobile platform 100 is depicted in a partially installed state in which certain elements may be omitted to provide a clearer view for descriptive purposes.

As shown in view 1000, multi-service mobile platform 100 is used in a similar manner as shown with respect to FIG. 7 for pipe service. For example, in view 1000, jointed pipe handler 114 may be using snubbing unit 128 (not visible in FIG. 10) in a configuration similar to that shown in FIGS. 6A and 8. Also visible in view 1000 is a pumping unit 1010, which may be an external pumping system that is connected to choke manifold 344 (pumping connections are omitted in FIG. 10 for descriptive clarity). Also shown in FIG. 10 is a CT reel trailer 1012, which together with CT injector 342 may comprise CT handler 126 referenced previously with respect to FIG. 1. CT reel trailer 1012 may provide a supply of CT (not shown in FIG. 10) and may be positioned nearby to multi-service mobile platform 100 in preparation for a transition from pipe service to CT service. Because jointed pipe handler 114 and CT reel trailer 1012 are themselves mobile units, repositioning for transitions between pipe service and CT service is made possible in a relatively short time with the features described herein associated with multi-service mobile platform 100. In FIG. 10, also shown is pipe section 714 installed at the wellhead for work.

Referring now to FIG. 11A, a top view 1100 depicts walking and positioning of multi-service mobile platform 100, as disclosed herein. Various elements described and shown previously with respect to FIGS. 2A, 2B, 3, 4, 5, 6A, 6B, and 7 are visible in top view 1100 in FIG. 11A. In FIG. 11A, multi-service mobile platform 100 is depicted in a partially installed state in which certain elements may be omitted to provide a clearer view for descriptive purposes.

In top view 1100, multi-service mobile platform 100 is shown in a mobile state (see also FIG. 14) in which multi-service mobile platform 100 has been cleared from any ground connections or points of contact, except for bottom boxes 228. For example, in the walking state of multi-service mobile platform 100, outriggers 216 (not visible in FIG. 11) have been stowed or removed, external lines to equipment such as to pumping unit 1010 or CT reel trailer 1012 have been removed, pipe stand racks 115 have been removed, and BOP 222 has been tilted upwards on BOP rails 224, as shown in FIG. 2A, and furthermore, top boxes 226 have been pinned in a raised position to bottom boxes 228.

In the walking state of multi-service mobile platform 100 shown in FIG. 11A, walking may then be performed, as described above, using main lift cylinders 230 and walking feet 242, in a direction 1102, towards a well pad 1110 comprised of two rows of wellheads, including a first wellhead 1112. With respect to front direction 140 in FIG. 1, direction 1102 may be a rear direction, such that multi-service mobile platform 100 is shown walking ‘backwards’ in FIG. 11A opposite to front direction 140. As multi-service mobile platform 100 approaches first wellhead 1112, the walking continues until alignment of BOP 222 with first wellhead 1112 is attained. Then, multi-service mobile platform 100 can be made operational for various well service operations on first wellhead, as described herein.

Referring now to FIG. 11B, a top view 1101 depicts pipe service of multi-service mobile platform 100 at first wellhead 1112 (not visible in FIG. 11B) of well pad 1110, as disclosed herein. Various elements described and shown previously with respect to FIGS. 2A, 2B, 3, 4, 5, 6A, 6B, and 7 are visible in top view 1101 in FIG. 11B. In FIG. 11B, multi-service mobile platform 100 is depicted in a partially installed state in which certain elements may be omitted to provide a clearer view for descriptive purposes. In top view 1101, multi-service mobile platform 100 is shown in a pipe service state, similar to FIG. 10 above, in which jointed pipe handler 114 is performing pipe service. Also in top view 1101, CT injector 342 has been moved to a working proximity position along floor rails 345 and is in a location that can be accessed for hoisting by crane arm 620.

Referring now to FIG. 11C, a top view 1102 depicts CT service of multi-service mobile platform 100 at first wellhead 1112 (not visible in FIG. 11C) of well pad 1110, as disclosed herein. Various elements described and shown previously with respect to FIGS. 2A, 2B, 3, 4, 5, 6A, 6B, and 7 are visible in top view 1102 in FIG. 11C. In FIG. 11C, multi-service mobile platform 100 is depicted in a partially installed state in which certain elements may be omitted to provide a clearer view for descriptive purposes. In top view 1102, multi-service mobile platform 100 is shown in a CT service state, in which jointed pipe handler 114 is has been moved to the side, and CT handler 126 is performing CT service. Specifically, CT reel trailer 1012 is feeding CT 1120 to CT injector 342, which may or may not employ snubbing unit 128 below (not visible).

Referring now to FIG. 11D, a top view 1103 depicts a rapid change-off between pipe and CT service of multi-service mobile platform 100 at first wellhead 1112 (not visible in FIG. 11D) of well pad 1110, as disclosed herein. Various elements described and shown previously with respect to FIGS. 2A, 2B, 3, 4, 5, 6A, 6B, and 7 are visible in top view 1103 in FIG. 11D. In FIG. 11D, multi-service mobile platform 100 is depicted in a partially installed state in which certain elements may be omitted to provide a clearer view for descriptive purposes. In top view 1103, multi-service mobile platform 100 is shown subsequent to top view 1102 in FIG. 11C, for a transition from CT service to pipe service. Specifically, CT reel trailer 1012 has been moved back but has remained connected via CT 1120 to CT injector 342, which has been placed on trolley 343 and moved to a standby position along floor rails 345. Meanwhile, jointed pipe handler 114 has been moved back into a working position, albeit at an angle, but yet still accessible to pipe stand racks 115. Thus, as top view 1103 shows, multi-service mobile platform 100 is enabled for rapid change-off between pipe service and CT service, as desired.

Referring now to FIG. 12A, a view 1200 depicts pipe snubbing with multi-service mobile platform 100 in a front perspective view. Various elements described and shown previously with respect to FIGS. 2A, 2B, 3, 4, 5, 6A, 6B, and 7 are visible in view 1200 in FIG. 12A. In FIG. 12A, multi-service mobile platform 100 is depicted in a partially installed state in which certain elements may be omitted to provide a clearer view for descriptive purposes. In view 1200, multi-service mobile platform 100 is shown in a pipe service state, similar to top view 1102 in FIG. 11B above, but with a front perspective view to show BOP 222 supporting snubbing unit 128 that is feeding pipe section 714. It is noted that snubbing unit 128 may be equipped with slip bowls or another tubing guide that expands and allows for full-bore access to the wellhead to enable running CT or any other type of tubular conduit or casing. Thus, in this manner, CT injector 342 may be used in conjunction with snubbing unit 128.

Referring now to FIG. 12B, a view 1201 depicts pipe snubbing with multi-service mobile platform 100 in a rear perspective view. Various elements described and shown previously with respect to FIGS. 2A, 2B, 3, 4, 5, 6A, 6B, and 7 are visible in view 1201 in FIG. 12B. In FIG. 12B, multi-service mobile platform 100 is depicted in a partially installed state in which certain elements may be omitted to provide a clearer view for descriptive purposes. View 1201 depicts multi-service mobile platform 100 from a rear perspective view that shows rear auxiliary platform 130. Also visible in view 1201 are stairs 1210-1 and 1210-2 which lead to the ground from rear auxiliary platform 130 to provide safe passages to the ground for personnel.

Referring now to FIG. 13A, a platform delivery and installation procedure 1300 is illustrated in a perspective view with top boxes 226 and bottom boxes 228 shown installed previously. Various elements described and shown previously with respect to FIGS. 2A, 2B, 3, 4, 5, 6A, 6B, and 7 are visible in view 1300 in FIG. 13A. As shown, procedure 1300 is shown with the example of panorama cabin platform 124 being delivered and installed by truck to top box 226-1. However, it will be understood that the same basic procedure as described with respect to FIGS. 13A and 13B may be used with any other auxiliary platforms attached to top boxes 226 shown or described herein in a substantially similar manner.

In FIG. 13A, top boxes 226 are shown in a vertical position such that the bottom of top box 226-1 is at the same height as the bottom of panorama cabin platform 124, shown being delivered on a truck bed 1310. Truck bed 1310 is positioned such that mounting plates 250 on top box 226-1 (not visible in FIG. 13A) mate with a corresponding mechanical detention element on panorama cabin platform 124 to secure panorama cabin platform 124 to top box 226-1. Once secured, top boxes 226, along with panorama cabin platform 124, may be raised off truck bed 1310, which can then depart unloaded. The same procedure using various truckloads can be used to deliver and install other auxiliary platforms disclosed herein, among other components of multi-service mobile platform 100, including left auxiliary platform 125 and rear auxiliary platform 130.

In FIG. 13B, a platform delivery and installation procedure 1301 is illustrated in a perspective view with top boxes 226 and bottom boxes 228 shown installed previously. Various elements described and shown previously with respect to FIGS. 2A, 2B, 3, 4, 5, 6A, 6B, and 7 are visible in view 1301 in FIG. 13B. As shown, procedure 1301 is shown with the example of panorama cabin platform 124 being delivered and installed by truck to top box 226-1. However, it will be understood that the same basic procedure as described with respect to FIGS. 13A and 13B may be used with any other auxiliary platforms attached to top boxes 226 shown or described herein in a substantially similar manner. In procedure 1301, panorama cabin platform 124 is attached to top box 226-1 and is raised free from truck bed 1310, which has departed and is not shown. Also visible in FIG. 13B is mounting plate 250 which attaches to and secures panorama cabin platform 124.

In FIG. 13C, a panorama cabin height adjustment procedure 1302 is illustrated in a perspective view with top boxes 226 and bottom boxes 228 shown installed previously. Various elements described and shown previously with respect to FIGS. 2A, 2B, 3, 4, 5, 6A, 6B, and 7 are visible in view 1302 in FIG. 13C. As shown, procedure 1302 is shown with the example of panorama cabin platform 124 installed to top box 226-1, as shown in FIG. 13B. Then, in procedure 1302, panorama cabin 310 may be raised using cabin lifts 616 to a desired height, such as corresponding to the top of top box 226-1, which forms the work floor of multi-service mobile platform 100. In FIG. 13C, panorama cabin 310 is shown in a raised position for operation. It will be understood that panorama cabin 310 may be raised or lowered from the shown position using cabin lifts 616.

Referring now to FIG. 14, a front view 1400 depicts walking and positioning of multi-service mobile platform 100 in a perspective view, as disclosed herein. Various elements described and shown previously with respect to FIGS. 2A, 2B, 3, 4, 5, 6A, 6B, and 7 are visible in front view 1400 in FIG. 14. In FIG. 14, multi-service mobile platform 100 is depicted in a partially installed state in which certain elements may be omitted to provide a clearer view for descriptive purposes.

In front view 1400, multi-service mobile platform 100 is shown in a mobile state (see also FIG. 11A) in which multi-service mobile platform 100 has been cleared from any ground connections or points of contact, except for bottom boxes 228. For example, in the walking state of multi-service mobile platform 100, outriggers 216 have been stowed or removed, external lines to equipment such as to pumping unit 1010 or CT reel trailer 1012 have been removed, pipe 714 from pipe stand racks 115 have been removed, and BOP 222 has been tilted upwards on BOP rails 224, as shown in FIG. 2A (not visible in FIG. 14), and furthermore, top boxes 226 have been pinned in a raised position to bottom boxes 228. Additionally, stairs 1210-1 and 1210-2 leading to the ground are shown stowed in clearance from the ground, but still attached to multi-service mobile platform, as in a potential condition for walking.

Referring now to FIG. 15, a perspective view of a base platform structure 1500 is depicted. As shown, base platform structure 1500 may represent an alternative to base platform structure 120. Instead of having a top box enabled for being collapsed within a bottom box as in base platform 120, base platform structure 1500 has a bottom box 1510 that is fixed in position relative to top box 1512. Additionally, main lift cylinders 1514 are located in bottom box 1510. As a result of the features in base platform structure 1500, certain installation and attachment methods with respect to multi-service mobile platform 100 may be performed in a different manner other than described herein using truckloads to deliver modular components and to install the modular components. For example, a crane may be used in conjunction with base platform structure 1500 to install and fix modular components, such as various auxiliary platforms described herein. Base platform structure 1500 may be enabled to walk multi-service mobile platform 100 using main lift cylinders 1514 in a substantially similar manner as described previously using ‘walking feet’.

Referring now to FIGS. 16A, 16B, and 16C, flowcharts of selected elements of an embodiment of method 1600 for installing a multi-service mobile platform, as disclosed herein, is depicted. Method 1600 may be performed in the context of performing well servicing at a wellhead, as described above. It is noted that certain operations described in method 1600 may be optional or may be rearranged in different embodiments.

Method 1600-1 in FIG. 16A may begin at step 1610 by installing, at a first location, a base platform structure. At step 1612, a first hydraulic pressure unit is installed in proximity to the first location to provide hydraulic pressure to at least one main lift cylinder(s) to enable the main lift cylinder(s) to raise and lower the top box with respect to the bottom box. At step 1614, at least one work floor section is delivered to the first location and installed on the top box. At step 1616, in any sequential order of loads to the first location, a first load comprising a first auxiliary platform for coupling to the rear work floor section, and for coupling to a first portion and a second portion of the top box, is delivered, including installing the rear auxiliary platform, where the rear auxiliary platform includes a backup hydraulic pressure unit, a draw works, and an electrical power unit. At step 1618, in any sequential order of loads to the first location, a second load comprising a BOP platform is delivered including installing the BOP platform to a bottom edge at the first portion and the second portion of the top box. At step 1620, in any sequential order of loads to the first location, a third load comprising a panorama cabin and a second hydraulic pressure unit that couples to the first portion of the top box is delivered, including installing the panorama cabin, where the panorama cabin includes front, top, and end windows that provide a working view of the work floor and a derrick installed on the work floor. At step 1622, in any sequential order of loads to the first location, a fourth load comprising a second auxiliary platform for coupling to the second portion of the top box is delivered, including installing the second auxiliary platform.

After step 1622, method 1600-1 may proceed to method 1600-2 in FIG. 16B, where, at step 1624, in any sequential order of loads to the first location, a fifth load comprising the derrick is delivered, including hoisting the derrick onto the work floor, where the derrick includes a rotary drive, an auto torque wrench for pipe, and a crane arm, and the derrick is aligned with the wellhead when installed on the work floor. In some embodiments of step 1624, the derrick may be hoisted using draw works 320. At step 1626, in any sequential order of loads to the first location, a sixth load is delivered to the first location, where the sixth load comprises a snubbing unit. At step 1628, the snubbing unit is lifted onto the second auxiliary platform. At step 1628, the snubbing unit may be lifted using a crane external to the multi-service mobile platform. At step 1630, in any sequential order of loads to the first location, a seventh load is delivered to the first location, where the seventh load comprises at least one pipe stand rack, including installing the at least one pipe stand rack at a front portion of the multi-service mobile platform. At step 1632, in any sequential order of loads to the first location, an eighth load is delivered to the first location, where the eighth load comprises a pipe handler, including installing the pipe handler adjacent to the at least one pipe stand rack, and a ninth load is delivered to the first location, where the ninth load comprises a pipe bin, including placing the pipe bin and the pipe handler adjacent to each other. At step 1634, in any sequential order of loads to the first location, a tenth load is delivered to the first location, where the tenth load comprises a CT injector.

After step 1634, method 1600-2 may proceed to method 1600-3 in FIG. 16C, where, at step 1636, the CT injector is lifted onto the second auxiliary platform. At step 1636, the CT injector may be lifted using a crane external to the multi-service mobile platform. At step 1638, in any sequential order of the loads to the first location, an eleventh load is delivered to the first location, where the eleventh load comprises a wireline unit, including lifting the wireline unit onto the top box. At step 1640, the multi-service mobile platform is connected to a first wellhead at the first location. At step 1642, pipe service begins at the first wellhead. At step 1643, a decision is made whether to begin with coiled tubing. When the result of step 1643 is NO, and no decision is made to begin with coiled tubing, at step 1644, pipe service is continued, after which method 1600-3 loops back to step 1643. When the result of step 1643 is YES, and a decision is made to begin with coiled tubing, at step 1646, the pipe handler is moved away from the multi-service mobile platform, where the pipe handler remains in a working position. At step 1648, in any sequential order of loads to the first location, a twelfth load is delivered to the first location, where the twelfth load comprises a coiled tubing handler including a reel of coiled tubing, and including installing the coiled tubing handler adjacent to the pipe handler.

Referring now to FIG. 17, a flowchart of selected elements of an embodiment of method 1700 for transferring a multi-service mobile platform, as disclosed herein, between wells is depicted. Method 1700 may be performed in the context of performing well servicing at a wellhead, as described above. It is noted that certain operations described in method 1700 may be optional or may be rearranged in different embodiments.

Method 1700 may begin at step 1710 by installing a multi-service mobile platform at a first wellhead including connecting the first wellhead in fluid communication with the BOP and the pumping manifold. For example, in step 1710, BOP 222 (including associated elements in a BOP stack) may be coupled in fluid communication with the first wellhead (such as to a master valve for the first wellhead), and fluid lines from BOP 222 may, in turn, be connected to choke manifold 344. At step 1712 a decision is made whether to move to a second wellhead. When the result of step 1712 is NO, and no decision is made to begin with a second wellhead, method 1700 loops back to step 1712. When the result of step 1712 is YES, and a decision is made to begin with a second wellhead, at step 1714, the multi-service mobile platform is prepared for walking, including lifting up the outrigger off the ground, disconnecting the first wellhead from fluid communication with the pumping manifold, closing a master valve for the first wellhead, disconnecting the BOP and the pumping manifold from fluid communication with the first wellhead, and resting the BOP on a BOP platform at the lower level. At step 1716, the multi-service mobile platform is walked to the second wellhead using the main lift cylinders with the upper level pinned to the lower level, including controlling actuation of base plates and sliding plates respectively attached to each of the main lift cylinders. In step 1716, the multi-service mobile platform may be enabled to walk relatively straight in any direction, or along a given proscribed path that may be arbitrary and may include turns, curves, and rotations. At step 1718, actuation of the base plates and the sliding plates is controlled to align the multi-service mobile platform with the second wellhead. At step 1720, a decision is made whether the multi-service mobile platform is aligned with the second wellhead. When the result of step 1720 is NO, and the multi-service mobile platform is not aligned with the second wellhead, method 1700 loops back to step 1718. When the result of step 1720 is YES, and the multi-service mobile platform is aligned with the second wellhead, at step 1722, the second wellhead is connected in fluid communication with BOP and the pumping manifold, lower the outrigger to the ground to stabilize the multi-service mobile platform, and power on the electrical power unit and the hydraulic power unit to place the multi-service mobile platform in an operational state.

As disclosed herein, a multi-service mobile platform is enabled for various different types of well servicing, including jointed pipe service, coiled tubing service, snubbing service, and wireline service. The multi-service mobile platform may be installed using loads to deliver modular components and assemblies, such as on a truck bed for example. The multi-service mobile platform is mobile and may be positioned in an installed and configured state from one wellhead to another wellhead. The multi-service mobile platform includes integrated hydraulic and electrical power sources and integrated lines for the power sources.

The above disclosed subject matter is to be considered illustrative, and not restrictive, and the appended claims are intended to cover all such modifications, enhancements, and other embodiments which fall within the true spirit and scope of the present disclosure. Thus, to the maximum extent allowed by law, the scope of the present disclosure is to be determined by the broadest permissible interpretation of the following claims and their equivalents, and shall not be restricted or limited by the foregoing detailed description. 

What is claimed is:
 1. A control cabin for a multi-service mobile platform, the control cabin comprising: a panorama window to enable horizontal and vertical viewing of the multi-service mobile platform in operation when the control cabin is installed on the multi-service mobile platform; at least one hydraulic cylinder enabled to raise or lower the control cabin; a first control system for controlling a rotary drive and a draw works associated with the multi-service mobile platform; a second control system for controlling a snubbing unit associated with the multi-service mobile platform; a third control system for controlling a coiled tubing handler associated with the multi-service mobile platform; and a fourth control system for controlling a wireline unit associated with the multi-service mobile platform, wherein the first control system, the second control system, the third control system, and the fourth control system are powered using an electrical power unit included with the multi-service mobile platform.
 2. The control cabin of claim 1, further comprising: a first workstation enabled to receive user input and communicate with the first control system and the second control system; and a second workstation enabled to receive user input and communicate with the third control system and the fourth control system, wherein the first workstation and the second workstation are powered using the electrical power unit.
 3. The control cabin of claim 2, wherein, when the control cabin is installed on the multi-service mobile platform: a user of the first workstation or the second workstation is provided a view from the rotary drive to a blowout-preventer (BOP) included with the multi-service mobile platform by the panorama window.
 4. The control cabin of claim 1, further comprising: a heating, ventilation, and air conditioning (HVAC) system to maintain a desired working climate within the control cabin, wherein the HVAC system is powered using the electrical power unit.
 5. The control cabin of claim 2, further comprising: network equipment to facilitate networking among the first workstation, the second workstation, the first control system, the second control system, the third control system, and the fourth control system, wherein the network equipment is powered using the electrical power unit.
 6. A multi-service mobile platform for well servicing comprising: a base platform structure having a lower level and an upper level that mate together when the upper level is lowered over the lower level; a platform base formed by an upper surface of the upper level, the platform base for accessing a wellhead for well servicing operations; four hydraulic lift cylinders for vertically raising and lowering the upper level of the base platform structure; a derrick with a rotary drive installed at the upper level, the derrick enabled to support jointed-pipe installation at the wellhead; a coiled tubing injector mounted on the derrick and enabled to support coiled tubing installation at the wellhead; and a hydraulic pressure generator enabled to supply hydraulic pressure to at least the four hydraulic lift cylinders, the derrick, and the coiled tubing injector.
 7. The multi-service mobile platform of claim 6, wherein at least one of the hydraulic lift cylinders further comprises: mechanical feet enabled to walk the multi-service mobile platform when the multi-service mobile platform is assembled.
 8. The multi-service mobile platform of claim 6, further comprising: a snubbing unit enabled for installation on the wellhead; and a wireline unit enabled to support wireline operations at the wellhead, wherein the hydraulic pressure generator is enabled to supply hydraulic pressure to the snubbing unit.
 9. The multi-service mobile platform of claim 8, further comprising: a control cabin enabled for coupling to the upper level, the control cabin enabling monitoring and control of the hydraulic lift cylinders, the derrick, the rotary drive, the coiled tubing injector, the snubbing unit, and the wireline unit.
 10. The multi-service mobile platform of claim 9, wherein the control cabin further comprises: a panorama window that enables direct view of the derrick, the platform base, and the well head.
 11. The multi-service mobile platform of claim 10, further comprising: an electrical power generator enabled to supply electrical power to at least the derrick, the coiled tubing injector, the snubbing unit, the wireline unit, and the control cabin.
 12. The multi-service mobile platform of claim 6, further comprising: a hydraulic pressure manifold accessible from the lower level, the hydraulic pressure manifold enabling access from the lower level to a plurality of hydraulic fittings providing fluid communication for hydraulic pressure.
 13. The multi-service mobile platform of claim 6, wherein the platform base further comprises: a plurality of steel leaves covering the platform base, wherein at least one of the steel leaves is removably attached to the platform base to enable access to the lower level from the platform base.
 14. The multi-service mobile platform of claim 6, wherein the upper level further comprises: an internal staircase from the platform base to the lower level; and a wellhead platform enabled for coupling to the upper level and accessible from the internal staircase, wherein the wellhead platform enables a worker to access the wellhead.
 15. The multi-service mobile platform of claim 6, wherein the hydraulic pressure generator further comprises a plurality of hydraulic pumps, wherein each the hydraulic pumps is individually activated depending on a hydraulic load provided by the hydraulic pressure generator.
 16. The multi-service mobile platform of claim 6, wherein all of the plurality of hydraulic pumps are activated at a maximum hydraulic load provided by the hydraulic pressure generator.
 17. The multi-service mobile platform of claim 8, wherein the coiled tubing injector and the snubbing unit are integrated as a single unit.
 18. The multi-service mobile platform of claim 11, wherein the derrick is a telescopic derrick that is attached to the platform base.
 19. The multi-service mobile platform of claim 18, wherein the telescopic derrick supports strings of single pipe operations, double pipe operations, and triple pipe operations.
 20. The multi-service mobile platform of claim 6, further comprising: a rotary table installed at the platform base.
 21. The multi-service mobile platform of claim 20, further comprising: a pair of power tongs; and an auto-torque pipe wrench, wherein the pair of power tongs and the auto-torque pipe wrench are enabled for use with the rotary table.
 22. The multi-service mobile platform of claim 6, wherein the derrick further comprises a tie-off point for the coiled tubing injector when the coiled tubing injector is in use.
 23. The multi-service mobile platform of claim 22, wherein the tie-off point is adjustable at different heights with respect to the derrick.
 24. The multi-service mobile platform of claim 8, further comprising: a driver for the wireline unit attached to the derrick.
 25. The multi-service mobile platform of claim 9, further comprising: an auxiliary platform enabled for coupling to the upper level at an opposing side of the upper level from the control cabin, wherein the auxiliary platform is enabled for: stowing the coiled tubing injector when the coiled tubing injector is not in use.
 26. The multi-service mobile platform of claim 25, wherein the auxiliary platform further comprises: a choke manifold enabled to change direction of fluid flow in fluid communication with the wellhead; and an accumulator enabled to activate a blowout preventer installed on the wellhead.
 27. The multi-service mobile platform of claim 9, wherein the control cabin further comprises: at least two hydraulic rams enabled to raise or lower the control cabin relative to the upper level.
 28. The multi-service mobile platform of claim 8, further comprising: a plurality of outriggers enabled to structurally support the base platform structure, wherein the outriggers increase the weight capacity of the multi-service mobile platform when deployed on the ground.
 29. The multi-service mobile platform of claim 28, wherein the outriggers are enabled for lifting off the ground when the mechanical feet walk the multi-service mobile platform.
 30. The multi-service mobile platform of claim 18, further comprising: a draw works attached to the upper level, the draw works operating in conjunction with the rotary drive and enabled to raise and lower the telescoping derrick.
 31. The multi-service mobile platform of claim 30, wherein the draw works is powered by the hydraulic pressure generator.
 32. The multi-service mobile platform of claim 30, wherein the draw works is powered by the electrical power generator.
 33. The multi-service mobile platform 6, wherein the base platform structure further comprises: at least one supplemental box to elevate the multi-service mobile platform by a height of the supplemental box. 